At the Gadget Guys we sell a range of motorcycle intercoms some of which work via Bluetooth. So here’s a little explanation of how Bluetooth works.
There are lots of different ways that electronic devices can connect to one another – there can be wires or cable or infrared, WiFi or Bluetooth signals (and other methods are being developed). A Bluetooth connection is wireless and automatic. It is a proprietary open wireless technology standard for exchanging data over short distances. Bluetooth uses short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices.
If you are looking for a top of the line Bluetooth intercom and hands free kit then the Chatterbox unit is the answer.
The XBi2 is a wireless intercom that comes equipped with A2DP Bluetooth technology. It will allow simultaneous communications between 3 riders with up to 500 meters of range [1,640 ft] in optimum conditions.